MC7800, MC7800A, NCV7805 1.0 A Positive Voltage Regulators are monolithic integrated circuits designed as fixed−voltage regulators for a wide variety of applications including local, on−card regulation. These regulators employ internal current limiting, thermal shutdown, and safe−area compensation. With adequate heatsinking they can deliver output currents in excess of 1.0 A. Although designed primarily as a fixed voltage regulator, these devices can be used with external components to obtain adjustable voltages and currents.
The MC7800, MC7800A, and NCV7805 are monolithic 1 A positive voltage regulator ICs offered in fixed‑voltage versions. They feature internal current limiting, thermal shutdown, and safe‑area compensation, and can deliver output currents in excess of 1.0 A with adequate heatsinking. The devices are available in surface‑mount D2PAK‑3, DPAK‑3 and standard 3‑lead transistor packages, with NCV prefixes for automotive applications.
The datasheet lists detailed electrical characteristics such as output voltage, input voltage range, dropout voltage, quiescent current, and thermal resistance, as well as maximum ratings, package dimensions, marking diagrams, and ordering information for each part number.
| Maximum Output Current | Exceeds 1.0 A |
|---|---|
| Input Voltage Range (MC7805) | 7.0 Vdc – 20 Vdc |
| Power Dissipation | Internally limited |
| Dropout Voltage (1 A load) | 2.0 Vdc |
The regulators can deliver output currents in excess of 1.0 A when properly heatsinked.
The MC7805 operates with an input voltage between 7.0 V and 20 V.
They are offered in Surface Mount D2PAK‑3, DPAK‑3 and standard 3‑lead transistor packages.